ammunition magazines may interfere with the push for universal background checks on all firearm sales and a new gun trafficking law. those last two will be dealt with separately, and though they don't attract the biggest headlines, the white house believes they can pass, and, scott, they believe it might do the most good. >> pelley: major, thank you. one of the newtown children who wrote the president is natalie barden. she lost her seven-year-old brother, daniel. seth doane spoke to the barden family: natalie's mother and father, jacky and mark; and natalie's older brother, james. >> reporter: natalie, you wrote to president obama. >> uh-huh. >> reporter: what did you write about in that letter? >> um, i said that guns should not be able to buy just to anybody. it should only be for people in the military or for police officers. but if people wanted to do it as a sport, they could go to, like, a range, and then they'd have to leave the gun there.